Weil-McLain WTGO - Page 26

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Part number 550-141-825/1211

26

GOLD

WTGO

OIL-FIRED NATURAL DRAFT WATER BOILER — SERIES 3 — Boiler Manual

SERVICE TECHNICIAN ONLY — read and follow completely.

Connect wiring (continued)

Figure 18 Wiring diagram

Table of Contents

Using this Manual2
- When Calling or Writing about the Boiler2
- Packaged and Non-Packaged Boilers2
Hazard Definitions2
- Table of Contents3
Please Read before Proceeding4
- Tips for Water Systems4
Routine Maintenance Schedule5
- Beginning each Heating Season5
- Daily During Heating Season5
- Weekly During Heating Season5
- End of Heating Season5
- Boiler Shutdown5
Operation6
- WTGO (See Figure 1)6
Troubleshooting7
Before Installing Boiler8
- Installations Must Comply with8
- Before Selecting Boiler Location8
- Provide Clearances Around Boiler (See Figure 2)8
- Provide Air for Combustion and Ventilation9
- Lay a Foundation, if Needed9
Install Boiler - Packaged Boilers Only10
- Place Boiler10
- Perform Hydrostatic Pressure Test10
Install Boiler - Non-Packaged Boilers Only12
- Place Boiler12
- Tankless Heater, if Used12
- Perform Hydrostatic Pressure Test14
- Install Jacket (Required on Sizes 7 through 9 Only)14
- Install Boiler Controls14
Install Burner - All Boilers15
- Install Burner (also Refer to Instructions Packed with Burner)15
- For P-WTGO and A-WTGO Boiler15
Connect Breeching16
- General Chimney Requirements16
Connect Water Piping18
- General Piping Information18
- Install Piping18
- DIAPHRAGM Expansion Tank (Figure 9)18
- CLOSED Expansion Tank (Figure 10)18
- To Connect WTGO Boilers to Indirect-Fired Water Heaters18
- Piping MULTIPLE ZONES20
- Piping for Systems Requiring Temperatures below 140°F21
- Use with Refrigeration Systems22
Connect Tankless Heater Piping23
Connect Wiring24
- General Wiring Requirements24
- Junction Box (Furnished)24
- High Temperature Limit24
- 3-Wire Zone Valve Applications24
- Blocked Vent Shutoff Switch27
Connect Oil Piping28
- General Oil Piping Requirements28
Start-Up29
- Fill the System29
- When Using Antifreeze29
- To Place in Operation29
- Burner Adjustments29
Check-Out Procedure30
- Check off Steps as Completed30
- Installation and Service Certificate30
Annual Service Check List31
- Controls Requiring Annual Service31
Detailed Service Procedures32
- Cleaning Boiler Flueways32
- General Description of Control Operation32
Handling Ceramic Fiber and Fiberglass Materials33
Close Clearance Installation34
Replacement Parts36
Dimensions41
Ratings42
Notes43

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